Pierre laberie



(No Model.)

- P. LABERIE.

EVAPORATING APPARATUS.

N0. 378,598. Patented Feb. 28, 1888.

WITNESSES iNVENTTOR 6Q 72. J rlaerie By 28; zlorney W MA A N. PETERS. Phulnuthcgnpher, Washinghm [LO Unrrnn dra'rns Arnsrr rrrcno PIERRE LABERIE, OF PARIS, FRANCE.

EVAPGRATlNG APPARATUS.

SPECIFICATION forming part of Letters Patent No. 378,598, dated February 28, 188-8.

Application filed June 23, 1887. Serial No. 242,301. (No model.) Patented in France August 14. 1886, No. 177,956; in England August 26, 1836, No.10,911; in Spain August 28, 1886, No. 9,624, and in Belgium February 5, 1987, No. 76,241.

To 00% whom it may concern:

Be it known that I, PIERRE LABERIE, a citizen of the Republic of France, residingat Paris, France, have invented a new and useful Iniprovement in Evaporating Apparatus, (for which I have received Letters Patent in France, No. 177,956, dated August lat, 1886; in Great Britain, No. 10,911, dated August 26, 1886 in Spain, No. 9,624, dated August 28, 1886, and in Belgium, No. 7 6,241, dated February 5, 1887,) of which the following is a specification.

The object of my invention is to rapidly and economically evaporate beet-juice, cane-sugar juice, and other liquors and juices to be concentrated.

The details of construction and novel featuresof my invention appear from the followiug description and claims.

The accompanying drawing shows the apparatus arranged in a suitable and desirable manner for carrying out the objects of my invention.

A represents an ordinary vacuum-pan, which may be heated in any suitable manner by steam or otherwise A pipe, D, is shown as entering the cap or cover B of the pan and extending nearly to the bottom thereof. This pipe is in suitable connection with some source of hotair supply A pipe, 0, connects with the dome of the cap or cover B and also with a vertical condenser, E, as clearly shown. of the condenser is connected by a pipe, E, with the vacuum pan, the pipe being provided with a suitable stop-cock. In the upper end of the condenser E is an eXhaust-pipe,O, which may be connected with any suitable exhaust apparatus. Surrounding the upper part of the condenser E and the exhaust-pipe G is a jacket or casing, F, in which the juice or fluid to be supplied to the evaporating-pan is contained. This case F is connected by a pipe, F, having a suitable stop-cock therein, with the pipe D, which serves for the introduction of the hot air.

The hot air is preferably introduced into the bottom of the evaporating-pan below a slatted or perforated false bottom.

The operation is as follows: The action of the exhaust apparatus connected with the pipe 0 tends to form a vacuum in the pan and causes the hot air from the pipe D to rush into the pan.

The bottom passes off by way of pipe C, condenser E, and 5 exhaust-pipe 0. Any particles of sugar which may be carried through the pipe G by the draft will settle in the bottom of the condenser E,

and may be readmitted into the evaporating.

pan by opening the stopcock in the pipe E. The air and steam passing through the condenser and exhaust-pipe 0 heat the feed or supply fluid contained in the jacket or casing F, and the heated fluid is conveyed by the pipe F to the hot-air-induction pipe I), through which it is carried into the vacuum-pan by the draft of the hot air.

The stopcock in the pipe F may be adjusted so as to feed a constant supply of fluid to the pan. As the densest part of the concentrated juice will fall to the bottom of the pan A, it can be run off through a discharge-tap, G,without stopping the runniugof the apparatus. By

such an organization I am enabled to run the apparatus continuously and economically, as all the heat developed is utilized to the best advantage.

I am aware that it is not broadlynew to introduce hot air at the bottom of a concentrating-pan and draw it off by means of an exhaust. I am also aware that, broadly speaking, the hot air and steam carried off by the exhaust apparatus have been utilized to heat a fluid being operated upon, and do not, therefore, broadly claim such subject-matter.

I claim as my invention 1. The combination of the vacuum-pan, the hot-airinduction pipe 1), the fiuidsupply vessel, the pipe F, leading from the supply-vessel into the hot-air pipe, the eductionpipe *0, the condenser,tl1e exhaustpipe connected with the condenser, and a connection between the bottom of the condenser and the pan, whereby such particles of sugar, 8m, as are carried by the draft into the condenser may be returned to' the pan.

2. The combination, with a vacuum-pan, of the hot-aininduction pipe, the eduction-pipe 0, an exhaust-pipe by which the steam and hot air are drawn from the pan, a fluid-chamber,

F, through, which the exhaust-pipe passes,and

a pipe-connection between the fluid-chamber and the hot-airinduction pipe, whereby the heated fluid from the chamber F may be supplied to the pan through the hot-air-induction pipe, substantially as set forth.

3. The combination of the vacuum-pan, the hot-air-induetion pipe, an eduetion-pipe,G, an exhaust-pipe through which the hot air and steam are Withdrawn from the pan, a fluidsupply vessel through which the exhaust-pipe passes,apipe-connection, F, between the fluidsupply vessel and the induction-pipe D,and a cock in the pipe F,whereby the heated supply-fluid may be fed to the pan in a regulated quantity through the hot-air-induetion pipe D.

4. The combination of the pan, the hot-airinduction pipe D, the eduction-pipe G,the condenser with which the pipe 0 communicates,an exhaust-pipe, O, communicating with the top of the condenser, the fluid-supply vessel F,

through which the exhaust-pipe passes, and 20 the pipe-connection F between the fluid-supply vessel and the hot-air-induetion pipe D, substantially as set forth.

5. The combination of the pan, the hot-airinduction pipe, an eduction-pipe, an eXhaust- 25 pipe through which steam and air are withdrawn from the pan, the fluid-supply vessel through which the exhaust-pipe passes,apipeconnection, F, between the fluid-supply vessel and the hot-air-induetion pipe D, and the tap 0 G, arranged at the bottom of the pan, substantially as set forth.

In testimony whereof I have hereunto subscribed my name.

PIERRE LABERIE. WVitnesses:

FRANgoIs EUGENE LAZARE GUIGNER, Row. M. HOOPER. 

